423621160 has 32 divisors (see below), whose sum is σ = 953735400. Its totient is φ = 169344000.

The previous prime is 423621091. The next prime is 423621161. The reversal of 423621160 is 61126324.

It can be written as a sum of positive squares in 4 ways, for example, as 255296484 + 168324676 = 15978^2 + 12974^2 .

It is not an unprimeable number, because it can be changed into a prime (423621161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118276 + ... + 121804.

Almost surely, 2^423621160 is an apocalyptic number.

423621160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423621160 is an abundant number, since it is smaller than the sum of its proper divisors (530114240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423621160 is a wasteful number, since it uses less digits than its factorization.

423621160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6541 (or 6537 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 423621160 is about 20582.0591778374. The cubic root of 423621160 is about 751.0333371135.

Adding to 423621160 its reverse (61126324), we get a palindrome (484747484).

The spelling of 423621160 in words is "four hundred twenty-three million, six hundred twenty-one thousand, one hundred sixty".